Bright works only. Aggressive cleaning edges clean with less water, less streaking and less effort. Solid yellow MicroFiber cloth with red border. Cleans better because tiny fibers penetrate small irregular surfaces and pull out dirt. Extremely durable, can be washed and reused up to 1,500 times. Combine with SprayerOnABelt (SOABR) makes wet cleaning strain-free, fast and efficient.